色欲综合久久躁天天躁_亚洲欧美另类激情综合区蜜芽_久久99国产综合精品女同_最近最好的2019中文日本字幕

語(yǔ)言
news

Pig breeding equipment -- cold proof and temperature increasing technology in Piggery

In the actual winter pig feeding and management, to pay attention to the cold insulation measures in the pigsty, improve indoor temperature, reduce the consumption of pig body metabolism, in cold winter, not only does not affect the growth and fattening, but also promote the growth and fattening.
First, increase the feeding density of a pig is a "source", the higher the density, the higher the temperature. The sows per head, accounted for 4~4.5 square meters, a captive a nest; not pregnant sows per head accounted for 1.6 square meters, 4 square meters in 2~3 head; 6~8 months gilts per head accounted for 0.8 square meters, 4 square meters of captive 7~8 head. The above bars include eating, drinking and resting places. In the resting area (sleeping area), the method of lying full circle should be adopted, that is, the pigs can be filled in the sleeping area without leaving any gaps, and the sleeping area should be kept clean and dry.
Two, reduce the humidity of pig house, the humidity of pig house is bigger, the heat that pig body loses is greater, the pig feels cold more. In order to avoid moisture, fold to frequently change hay and dry soil, to make the pig manure fixed row, generally 4~5 times per day and night time row fecaluria, pig lying place can ensure no waste, keep dry. Due to the increase in the number of pigs in the winter urine, the humidity inside the house becomes larger. So, in addition to training pigs "three point positioning" (food, feces, urine bed fixed position), fed feed can not be too thin.
Three, to prevent drafts into pigs by thieves attack pens gap. When the pig is asleep, it can cause cold, pneumonia and other diseases. Therefore, to block the leak and break the good housing gap, house windows or vents be apart from the ground 1.5 meters above.
Four, the application of simple fold plastic greenhouses covered with plastic film can effectively improve Pingpen temperature above 7 DEG C, reduce cold stress, reduce energy consumption.
Five, for increasing the density of the grass in the grass at the same time the application of thick cushion ring, it is a effective way to winter moisture proof, bedding straw (wheat straw, rice straw and sawdust) sources, straw and pig manure fermentation of organic fertilizer used together. Methods using the pad grass ring is in the grass plate pig lying area 20~30 cm, grass board best brick cement bricks; the vertical brick on the floor under 5 cm, 19 cm on the ground with cement brick brick grass blocking plate 20~22 cm high, the pad join the grass lying area, prevent the straw scattered and pig shit in the area lying.
Winter cold, when the outside temperature is too low, the pig body in order to maintain normal body temperature, it is necessary to enhance the oxidation of substances in the body decomposition, heat generation, to supplement the body heat dissipation. Generally speaking, when the temperature of piglets is between 20 and 26 degrees Celsius, the consumption of metabolism is low and the growth and development are normal. However, the consumption of large pigs was lower at 15 and 20 degrees Celsius, and their normal growth was normal.

  • Contact us
  • Web:http://www.szkaihang.cn/en/
  • http://qdph.en.alibaba.com
  • Tel/Whatsapp/Wechat:+8618266221406 +15621127700
  • Email:elsa@sdpuhui.cn nanaliu@sdpuhui.cn
  • Focus on us
  • Sales service hotline
  • 18660928200
  • Address:The streets of Bei'an Li Ling Industrial Park in Qingdao city of Jimo
  • Address:China Shandong Linyi Town Secondary Village Development Zone

Copyright 2017 Qingdao Puhui Agriculture and Animal Husbandry Science and Technology Co., Ltd. All Rights Reserved

久欠精品国国产99国产精 | 国产爆乳成aV人在线播放 | 国产精品久久久久婷婷五月 | 女人18毛片A级毛片免费视频 | 97免费国产一区二区三区 | 精品97国产免费人成视频 | 日韩精品极品视频在线观看免费 | 色偷偷色噜噜狠狠久久97 | 在线中文字幕有码中文 | 国产免费无码va电影 | 日韩AV在线永久免费观看 | 成AV人片一区二区三区久久 | 亚洲欧洲无码一区二区三区 | 无码专区中文字幕无码 | 精品日韩韩欧美美在线观看 | 国产精品美女久久久久AV超清 | 全部免费毛片免费播放 视频 | 在线中文天堂最新版www | 日韩免费无码电影一区二区三区 | 欧美日一夲道一区二区三区 | 在线观看91精品国产网站 | 五月天婷婷久久久精品影院 | 精品无码黑人又粗又大又长 | 久久99国产精一区二区三区! | 亚洲亚洲人成综合网络 | 中文字幕乱码人妻无码久久 | 中文字幕AV在线一二三区 | 蜜桃传媒无码一区二区三区 | 国产熟人AV一二三区 | 蜜臀av国内精品久久久人妻 | 中出人妻中文字幕无码 | 国产99视频精品免费视看6 | 国产一级片内射视频播放 | 久久99精品美女高潮喷水 | 欧美成人动漫一区二区三区 | 激情内射亚洲一区二区三区爱妻 | 精品欧美一区二区三区久久久 | 人妻少妇无码视频免费看 | 国产一级毛片在线视频 | 丰满熟妇XXXX性久久久 | 亚洲成AⅤ人片在线观看 |